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leetcode-cn/originData/find-invalid-ip-addresses.json

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+{
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+        "question": {
+            "questionId": "3792",
+            "questionFrontendId": "3451",
+            "categoryTitle": "Database",
+            "boundTopicId": 3073058,
+            "title": "Find Invalid IP Addresses",
+            "titleSlug": "find-invalid-ip-addresses",
+            "content": "<p>Table: <code> logs</code></p>\n\n<pre>\n+-------------+---------+\n| Column Name | Type    |\n+-------------+---------+\n| log_id      | int     |\n| ip          | varchar |\n| status_code | int     |\n+-------------+---------+\nlog_id is the unique key for this table.\nEach row contains server access log information including IP address and HTTP status code.\n</pre>\n\n<p>Write a solution to find <strong>invalid IP addresses</strong>. An IPv4 address is invalid if it meets any of these conditions:</p>\n\n<ul>\n\t<li>Contains numbers <strong>greater than</strong> <code>255</code> in any octet</li>\n\t<li>Has <strong>leading zeros</strong> in any octet (like <code>01.02.03.04</code>)</li>\n\t<li>Has <strong>less or more</strong> than <code>4</code> octets</li>\n</ul>\n\n<p>Return <em>the result table </em><em>ordered by</em> <code>invalid_count</code>,&nbsp;<code>ip</code>&nbsp;<em>in <strong>descending</strong> order respectively</em>.&nbsp;</p>\n\n<p>The result format is in the following example.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong></p>\n\n<p>logs table:</p>\n\n<pre class=\"example-io\">\n+--------+---------------+-------------+\n| log_id | ip            | status_code | \n+--------+---------------+-------------+\n| 1      | 192.168.1.1   | 200         | \n| 2      | 256.1.2.3     | 404         | \n| 3      | 192.168.001.1 | 200         | \n| 4      | 192.168.1.1   | 200         | \n| 5      | 192.168.1     | 500         | \n| 6      | 256.1.2.3     | 404         | \n| 7      | 192.168.001.1 | 200         | \n+--------+---------------+-------------+\n</pre>\n\n<p><strong>Output:</strong></p>\n\n<pre class=\"example-io\">\n+---------------+--------------+\n| ip            | invalid_count|\n+---------------+--------------+\n| 256.1.2.3     | 2            |\n| 192.168.001.1 | 2            |\n| 192.168.1     | 1            |\n+---------------+--------------+\n</pre>\n\n<p><strong>Explanation:</strong></p>\n\n<ul>\n\t<li>256.1.2.3&nbsp;is invalid because 256 &gt; 255</li>\n\t<li>192.168.001.1&nbsp;is invalid because of leading zeros</li>\n\t<li>192.168.1&nbsp;is invalid because it has only 3 octets</li>\n</ul>\n\n<p>The output table is ordered by invalid_count, ip in descending order respectively.</p>\n</div>\n",
+            "translatedTitle": "查找无效的 IP 地址",
+            "translatedContent": "<p>表：<code>logs</code></p>\n\n<pre>\n+-------------+---------+\n| Column Name | Type    |\n+-------------+---------+\n| log_id      | int     |\n| ip          | varchar |\n| status_code | int     |\n+-------------+---------+\nlog_id 是这张表的唯一主键。\n每一行包含服务器访问日志信息，包括 IP 地址和 HTTP 状态码。\n</pre>\n\n<p>编写一个解决方案来查找 <strong>无效的 IP 地址</strong>。一个 IPv4 地址如果满足以下任何条件之一，则无效：</p>\n\n<ul>\n\t<li>任何 8 位字节中包含大于 255 的数字</li>\n\t<li>任何 8 位字节中含有 <strong>前导零</strong>（如&nbsp;<code>01.02.03.04</code>）</li>\n\t<li><strong>少于或多于</strong>&nbsp;<code>4</code>&nbsp;个 8 位字节</li>\n</ul>\n\n<p>返回结果表分别以&nbsp;<code>invalid_count</code>，<code>ip</code>&nbsp;<strong>降序</strong>&nbsp;排序。</p>\n\n<p>结果格式如下所示。</p>\n\n<p>&nbsp;</p>\n\n<p><strong class=\"example\">示例：</strong></p>\n\n<div class=\"example-block\">\n<p><strong>输入：</strong></p>\n\n<p>logs 表：</p>\n\n<pre class=\"example-io\">\n+--------+---------------+-------------+\n| log_id | ip            | status_code | \n+--------+---------------+-------------+\n| 1      | 192.168.1.1   | 200         | \n| 2      | 256.1.2.3     | 404         | \n| 3      | 192.168.001.1 | 200         | \n| 4      | 192.168.1.1   | 200         | \n| 5      | 192.168.1     | 500         | \n| 6      | 256.1.2.3     | 404         | \n| 7      | 192.168.001.1 | 200         | \n+--------+---------------+-------------+\n</pre>\n\n<p><strong>输出：</strong></p>\n\n<pre class=\"example-io\">\n+---------------+--------------+\n| ip            | invalid_count|\n+---------------+--------------+\n| 256.1.2.3     | 2            |\n| 192.168.001.1 | 2            |\n| 192.168.1     | 1            |\n+---------------+--------------+\n</pre>\n\n<p><strong>解释：</strong></p>\n\n<ul>\n\t<li>256.1.2.3 是无效的，因为&nbsp;256 &gt; 255</li>\n\t<li>192.168.001.1 是无效的，因为有前导零</li>\n\t<li>192.168.1 是非法的，因为只有 3 个 8 位字节</li>\n</ul>\n\n<p>输出表分别以&nbsp;<code>invalid_count</code>，<code>ip</code>&nbsp;降序排序。</p>\n</div>\n",
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+                    "lang": "MySQL",
+                    "langSlug": "mysql",
+                    "code": "# Write your MySQL query statement below",
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+                },
+                {
+                    "lang": "MS SQL Server",
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+                    "code": "import pandas as pd\n\ndef find_invalid_ips(logs: pd.DataFrame) -> pd.DataFrame:\n    ",
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+                },
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+                    "lang": "PostgreSQL",
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+                    "code": "-- Write your PostgreSQL query statement below",
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+            ],
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+            "sampleTestCase": "{\"headers\":{\"logs\":[\"log_id\",\"ip\",\"status_code\"]},\"rows\":{\"logs\":[[1,\"192.168.1.1\",200],[2,\"256.1.2.3\",404],[3,\"192.168.001.1\",200],[4,\"192.168.1.1\",200],[5,\"192.168.1\",500],[6,\"256.1.2.3\",404],[7,\"192.168.001.1\",200]]}}",
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+                "CREATE TABLE logs (\n    log_id INT,\n    ip VARCHAR(255),\n    status_code INT\n)\n",
+                "Truncate table logs",
+                "insert into logs (log_id, ip, status_code) values ('1', '192.168.1.1', '200')",
+                "insert into logs (log_id, ip, status_code) values ('2', '256.1.2.3', '404')",
+                "insert into logs (log_id, ip, status_code) values ('3', '192.168.001.1', '200')",
+                "insert into logs (log_id, ip, status_code) values ('4', '192.168.1.1', '200')",
+                "insert into logs (log_id, ip, status_code) values ('5', '192.168.1', '500')",
+                "insert into logs (log_id, ip, status_code) values ('6', '256.1.2.3', '404')",
+                "insert into logs (log_id, ip, status_code) values ('7', '192.168.001.1', '200')"
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+            "exampleTestcases": "{\"headers\":{\"logs\":[\"log_id\",\"ip\",\"status_code\"]},\"rows\":{\"logs\":[[1,\"192.168.1.1\",200],[2,\"256.1.2.3\",404],[3,\"192.168.001.1\",200],[4,\"192.168.1.1\",200],[5,\"192.168.1\",500],[6,\"256.1.2.3\",404],[7,\"192.168.001.1\",200]]}}",
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